I am using RobohelpHTML 8 and am trying to create a project with context sensitive help including What's This. If I upgrade an old project which already includes What's This help then the File => New => What's This Help Project command is enabled. But in new project created in Robohelp8 this command is disabled. I have tried looking through the documentation but can't find anything that addresses this command being enabled or disabled. I would greatly appreciate any information on enabling this command in Robohelp 8. Thanks!

Try configuring the primary layout to be Microsoft HTML Help. It's probably configured as WebHelp or something else. What's This help is a CHM specific thing. (And it's fallen out of favor with Microsoft)